Public IPs of dremio-cloud to allow inbound to Data Sources

I’m running Dremio-Cloud in the EU control plane. I want to connect to a database that has a strict inbound client IP firewall. What IP addresses does Dremio-Cloud use to connect out to datasources? I need to add those IPs to the firewall.

I could only find this page, but it only mentions the IP Addresses that clients will be connecting to Dremio-Cloud on. Connecting Client Applications to Dremio | Dremio Documentation

If I’m not mistaken, to connect to external databases, it should be just the IP address of what you’ve got in your Preview Engine.

The only IP address I see for my engine is an internal IP address. I need to know the public IP of requests that originate from Dremio-Cloud and go to a database service’s public IP address. The database service has a firewall, and I have to add IPs (or ranges) to it.

This is interesting. I’m seeing a lot of different public IPs showing up. Like, so many different ones that I can’t reasonably add them all to the allow list. I presume that means whenever a new engine starts up it has a different public IP.

How do people solve this?